High-Performance Fibers from Spider Silk

Kubik, Stefan

doi:10.1002/1521-3773(20020802)41:15<2721::aid-anie2721>3.0.co;2-3

Cited by 48 publications

(48 citation statements)

References 11 publications

(21 reference statements)

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“…2,3,38 In a postulated model of this structure, the high electron density regions comprise crystalline sub-structures with high β-sheet content. 39 These sub-structures are thought to be responsible for the mechanical strength of the silk thread. The elasticity of silk is which triggers the formation of β-pleated structures with numerous intra-and interchain hydrogen bonds.…”

Section: Gpggx/gpgqq [Iii] Ggx (X = a S Or Y) And [Iv]mentioning

confidence: 99%

“…Distinct spider silk threads are able to absorb three-times more energy than for example Kevlar, one of the sturdiest materials on a weight-to-weight basis (Table 1). 39 It is interesting to note that synthetic materials typically show a higher stiffness and strength compared to natural fibers, whereas natural fibers tend to be more elastic. Synthetic carbon fibers, for example, have a yield point at approx 4 GPa.…”

Section: Gpggx/gpgqq [Iii] Ggx (X = a S Or Y) And [Iv]mentioning

confidence: 99%

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The elaborate structure of spider silk

Römer

Scheibel

2008

Prion

301

179

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Section: Gpggx/gpgqq [Iii] Ggx (X = a S Or Y) And [Iv]mentioning

confidence: 99%

Section: Gpggx/gpgqq [Iii] Ggx (X = a S Or Y) And [Iv]mentioning

confidence: 99%

The elaborate structure of spider silk

Römer

Scheibel

2008

Prion

301

179

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“…Spiders make silk of various types, numbers, properties, and purposes that vary with the species, environment, dietary composition, and metabolic status of the organism 6. Not surprisingly, early research has focused primarily on the mechanical properties of spider silk, with applications in light and strong composite materials in mind 7. Thus, spider silk has been a natural polymer of interest for genetic manipulations to improve its mechanical properties 8–10…”

Section: Introductionmentioning

confidence: 99%

Spider Silk as an Active Scaffold in the Assembly of Gold Nanoparticles and Application of the Gold–Silk Bioconjugate in Vapor Sensing

Singh

Hede

Sastry

2007

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Spider silk is being viewed with interest by materials scientists due to its excellent resilience and mechanical properties. In this paper we show that spider silk is an excellent scaffold for the one-step synthesis and assembly of gold nanoparticles. Formation of a gold nanoparticle-spider-silk bioconjugate material is accomplished by simple reaction of the fibers with aqueous chloroauric acid. The gold nanoparticles thus formed are strongly bound to the spider-silk fiber surface enabling study of the electrical properties of the nanobioconjugate. Using the well-known contraction/expansion behavior of the fibers in solvents of varying polarity, we show that exposure of the gold nanoparticle-spider silk bioconjugate to vapors of methanol and chloroform leads to changes in electrical transport through the nanoparticles and thus, the possibility of developing a vapor sensor. The bioconjugate shows excellent response time and cycling efficiency to methanol vapors. The activation energy of electron transport from one gold nanoparticle to another in the nanobiocojugate was determined from temperature-dependent electron-transport measurements to be approximately 1.7 eV.

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“…Yet the strength and antiseptic properties of spider silk (Freddi, 2002) is so compelling as to employ genetic engineering methods for its manufacture (Kubrik, 2002). The potential use of spun silk-like fibers consisting of engineered protein polymers (silklike polymer with fibronectin cell attachment functionality: SLPF) has been studied from the perspective of incorporating a fibronectin cell attachment protein sequence through recombinant DNA technology (Anderson et al, 1994).…”

Section: Fig 4 Changes Of Different Cotton Fabricsmentioning

confidence: 99%

Performance of Bioactive Molecules on Cotton and Other Textiles

Edwards

Goheen

2006

Research Journal of Textile and Apparel

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If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. ABSTRACTFour types of biologically active molecules were examined for their structure/activity relationships as applied to textile functionalization. Bio-molecules including enzymes, peptides, carbohydrates, and lipids have been found to retain their activity when linked to cotton fabrics. Wound dressing protection against the protease destruction caused by human neutrophil elastase was examined with cellulose conjugates and formulations of peptides, carbohydrates, and lipids attached with various chemistries to cotton dressings. These serve as a model for protective textiles at the surface of the skin. Additional biological activities that were explored included antibacterial and haemostatic fabrics related to wound healing, and neurotoxin neutralization related to decontamination. Lysozyme was found to have robust antibacterial activity when conjugated to cotton. Peptide conjugates of cellulose have been explored as enzyme substrates, antimicrobial agents, and cell adhesion promoters on textiles for wound healing. Carbohydrates ranging from low molecular weight monosaccharides to high molecular weight polysaccharides have both molecular and functional activity when crosslinked or grafted onto cotton with numerous textile performance properties. Textile bound lipids have been explored for a variety of applications including antibacterial, hygienic function, and enzyme inhibition. A lipid: albumin complex that serves as a carrier transfer agent involved in enzyme inhibition is given as an example.

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High-Performance Fibers from Spider Silk

Cited by 48 publications

References 11 publications

The elaborate structure of spider silk

The elaborate structure of spider silk

Spider Silk as an Active Scaffold in the Assembly of Gold Nanoparticles and Application of the Gold–Silk Bioconjugate in Vapor Sensing

Performance of Bioactive Molecules on Cotton and Other Textiles

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